Caterpillar Cat D6R TRACK-TYPE TRACTOR (Prefix 6MR) Service Repair Manual (6MR00001 and up).pdf

Service Repair Manual
Models
D6R TRACK-TYPE TRACTOR

Shutdown SIS
Previous Screen
Product: TRACK-TYPE TRACTOR
Model: D6R TRACK-TYPE TRACTOR 6MR
Configuration: D6R Track-Type Tractor Power Shift 6MR00001-UP (MACHINE) POWERED BY 3306 Engine
Disassembly and Assembly
D6R TRACK-TYPE TRACTOR POWER TRAIN
Media Number -SENR8357-02 Publication Date -01/05/2005 Date Updated -03/06/2014
SENR83570015
Final Drives
SMCS - 4050-012; 4050-015; 4050-016; 4050-011
Remove Final Drives
Start By:
a. separate track
NOTE: The final drive planetary carriers can be removed in chassis. See topic, Remove Final
Drive Planetary carriers (In Chassis).
1. Turn the final drive until drain plug (1) is on the bottom as shown. Remove drain plug (1) and
drain approximately 13.2 liters (3.4 U.S. gal) of oil from the final drive.
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2020/12/17
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

2. Remove the of cover from the final drive and remove the O-ring seal from the cover.
3. Install Tooling (A) and remove outer axle.
4. Adjust the top bracket on Tooling (B) so that distance (X) is 213 mm (8.4 in). The lower
mounting bracket must be installed with the spacers outward as shown.
5. Remove two of the bolts from the sprocket segment. Fasten a hoist and install Tooling (B) onto
the final drive.
NOTICE
Bolts (4) hold the steering clutch and brake to the main case and frame.
Do not remove bolts (4).
2/12
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6. Remove bolts (2) that hold the final drive to the main case and frame.
7. The weight of the final drive is 490 kg (1075 lb). Remove four bolts (3) that hold the final drive
and steering clutch and brake together.
8. Use Tooling (B) and remove the final drive from the machine.
9. Remove the O-ring seal from either the face of the steering clutch or the final drive hub.
Install Final Drives
1. Inspect the condition of O-ring seals and replace if necessary.
2. Put the O-ring seal in position on the face of the steering clutch.
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3. Fasten a hoist and install Tooling (B) onto the final drive. Adjust Tooling (B), if necessary, to
put the final drive in a level position.
4. Put the final drive in position onto the frame and install four bolts (3) that hold the final drive to
the steering clutch and brake.
5. Install bolts (2) that hold the final drive and steering clutch and brake to the main case and
frame. Remove Tooling (B)
6. Put SAE 30 oil on the threads of the segment bolts. Install the bolts and nuts with the nuts and
washers against the final drive. Tighten the nuts to a torque of 175 ± 40 N·m (130 ± 30 lb ft).
Tighten the nuts 1/3 of a turn more.
7. Install Tool (A) onto the outer axle and install the axle into the final drive.
8. Install the O-ring seal onto the cover and install the cover onto the final drive.
9. Rotate the final drive so drain plug (1) is toward the bottom. Fill the final drive with oil to the
bottom of the fill plug. See the Operation And Maintenance Guide for the type of oil and capacity.
End By:
a. connect track
Disassemble Final Drives
4/12
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Start By:
a. remove final drives
1. Install Tooling (A) onto the planetary carrier and attach a hoist.
2. The weight of the planetary carrier is 137 kg (301 lb). Remove bolts (1) that hold the planetary
carrier to the hub. Remove planetary carrier (3) and the two O-ring seals from the hub.
3. Remove three retainers (2).
4. Support planetary carrier (3), from underneath, to prevent damage. Use Tooling (B) and a press
and remove the three planetary gear shafts.
5. Remove three planetary gears (4) from carrier (3).
6. Remove bearing cones (5) from each of the gears (4)
7. Remove the bearing cups from each side of the gears.
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8. Remove ten bolts (6) and retainer (7).
9. The weight of the hub and ring gear (8) is 68 kg (150 lb). Use nylon straps and a hoist and
remove the hub and ring gear (8).
10. Turn hub (9) and ring gear (8) over. Remove retaining ring (10). The weight of the hub is 37
kg (82 lb). The weight of the ring gear is 32 kg (71 lb). Use nylon straps and a hoist to remove
hub (9).
11. Install Tooling (C) onto hub (12).
NOTICE
6/12
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Do not lift hub (12) high enough to make contact with the fitting on the
hydraulic cylinder, [part of Tooling (C)].
12. Use Tooling (C) and loosen hub (12) from spindle (13). Remove Tooling (C).
13. Remove bearing cone (11).
14. The weight of the hub (21) is 180 kg (395 lb). Install Tooling (D) and attach a hoist. Remove
hub (12) from spindle (13).
15. Turn the hub (12) over and remove Duo-Cone seal (15). Use a hammer and a punch and
remove bearing cup (16).
16. Turn the hub over and remove bearing cup (14) from the hub.
NOTE: If the Duo-Cone Seals are to be used again, put identification marks on the seals to assure
that they are assembled and installed in their original positions.
7/12
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NOTICE
Bearing cone (18) may be damaged if it is removed from spindle (13).
17. Remove Duo-Cone seal (19) from spindle (13).
18. If necessary, remove bearing cone (18) from the spindle.
19. Remove lip-type seal (17) from spindle (13).
Assemble Final Drives
1. Put clean oil on all the parts during assembly.
8/12
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2. Use Tooling (B) and install lip-type seal (17) into spindle (13). Put clean oil on the lip of the
seal.
3. Heat bearing cone (18) to a maximum temperature of 135° C (275° F). Install bearing cone (18)
onto spindle (13).
NOTE: Before installing any of the Duo-Cone seals, see Installation Of The Duo-Cone Floating
Seals in this module.
4. Use Tool (E) and install the Duo-Cone seal onto spindle (13).
5. Lower the temperature of bearing cups (14) and (16) and install them into in hub (12).
6. Use Tool (E) and install the Duo-Cone seal into hub (12).
7. Install Tooling (D) onto hub (12) and attach a hoist. Carefully put hub (12) in position on
spindle (13).
8. Heat bearing cone (11) to a maximum temperature of 135° C (275° F) Install bearing cone (11)
onto spindle (13).
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9. Use nylon straps and a hoist and put hub (9) in position in gear (8) and install retaining ring
(10).
10. Turn the hub and gear (8) over and install nylon straps. Attach a hoist to the nylon straps and
put the hub and the gear in position in hub (12).
11. Put retainer (7) in position and install ten bolts (6), while slowly rotating the hub. Tighten bolts
(6) evenly to a torque of 135 ± 15 N·m (100 ± 11 lb ft). The retainer must be in contact with the
end of spindle (13) after bolts (6) have been tightened.
12. Lower the temperature of bearing cups (20) and (21) and install them into three planetary
gears (4).
10/12
D6R Track-Type Tractor Power Shift 6MR00001-UP (MACHINE) POWERED BY...
2020/12/17

13. Put the planetary carrier in position in a press. Planetary shaft retainer (2) should be in position
and supported so as to act as a positive stop for the shaft when it is installed.
NOTICE
Shaft (22) must be installed correctly or bearing preload will be
incorrect and damage will result.
14. Put planetary gear (4) in position in the planetary carrier.
15. Lower the temperature of shaft (22) and use a press to install it into the planetary carrier. The
end of shaft (22) must be installed flush with the retainer surface of the planetary carrier for
correct bearing preload. Make sure the gear will rotate by hand after it has been installed. If it will
not rotate by hand, the problem should be found and corrected. Repeat the procedure for the three
shafts.
16. Install three retainers (2) on shafts (22).
11/12
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17. Install Tooling (A) and a hoist. Install the two O-ring seals onto the planetary carrier. Align the
drain hole in the carrier with the drain hole in the hub.
18. Put the planetary carrier in position on the hub.
19. Install the bolts that hold the planetary carrier to the hub. Remove Tooling (A).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Thu Dec 17 12:41:40 UTC+0800 2020
12/12
2020/12/17

Shutdown SIS
Previous Screen
SENR83570016
Final Drive, Steering Clutch & Brake
SMCS - 4050; 4100-011; 4100-012; 4100-015; 4100-016; 4100-029
Remove Final Drive, Steering Clutch & Brake
Start By:
a. separate track
1. Turn the final drive until drain plug (1) is on the bottom as shown. Remove drain plug (1) and
drain approximately 11.4 liters (3 U.S. gal) of oil from the final drive.
2. Remove the three bolts and the cover from the final drive. Remove the O-ring seal from cover.
3. Use Tool (A) and remove the outer axle shaft.
1/15
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4. Use Tool (A) and remove the inner axle shaft.
5. Adjust the lifting shackle on the 8T3207 Lift Bracket [part of Tooling (B)] so distance (X) is
63.5 mm (2.5 in). The lower mounting bracket should be installed so spacers (2) will be against
the sprocket.
6. Remove two bolts from the sprocket segments. Fasten a hoist and install Tooling (B) on the
final drive as shown.
7. Remove 26 bolts (3) that hold the from the final drive and steering clutch and brake to the
frame.
2/15
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NOTICE
Do not remove four bolts (4) that hold the final drive to the steering
clutch and brake.
8. The weight of the final drive and steering clutch and brake assembly is 682 kg (1500 lb).
Remove two bolts (5) that hold the steering clutch and brake to the frame.
9. Use Tooling (B) and a hoist and remove the final drive and steering clutch and brake as a unit.
Install Final Drive, Steering Clutch & Brake
1. Inspect all O-ring seals for damage and replace if necessary.
3/15
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2. Fasten a hoist and install Tooling (B) on the final drive. Make an adjustment to Tooling (B), if
needed, to level the final drive and steering clutch and brake.
3. Put the final drive, steering clutch and brake in position on the tractor.
4. Install two bolts (5) that hold the steering clutch and brake.
5. Install 26 bolts (3) that hold the final drive, steering clutch and brake in position. Remove
Tooling (B).
6. Put SAE 30W oil on the threads of two segment bolts. Install so the head of the bolts are
against the segment and so the washers and nuts are against the final drive.
7. Tighten the nuts to a torque of 175 ± 40 N·m (130 ± 30 lb ft). Tighten the nuts 1/3 of a turn
more.
8. Use Tool (A) and install the inner axle. Remove Tool (A).
9. Use Tool (A) and install the outer axle. Remove Tool (A).
4/15
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10. Put the O-ring seal in position on the cover and install the cover on the final drive.
11. Rotate the final drive so drain plug (1) is toward the bottom. Fill the final drive with oil to the
bottom of the fill plug hole. See the Operation And Maintenance Guide for the correct type of oil
and capacity.
End By:
a. connect track
Separate & Connect Final Drive, Steering Clutch & Brake
Start By:
a. remove final drive, steering clutch and brake
1. Remove O-ring seal (1).
2. The weight of the steering clutch and brake assembly is 255 kg (560 lb). Install Tooling (A) and
attach a hoist as shown.
3. Remove bolts (2).
4. Remove the steering clutch and brake from the final drive.
5/15
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5. Turn the steering clutch and brake over and remove O-ring seal (3).
NOTE: The following steps are for connection of the final drive and steering clutch and brake.
6. Inspect the O-ring seals for damage and replace if necessary. Put clean oil on the O-ring seals.
7. Put O-ring seal (3) in position on the steering clutch and brake.
8. Install Tooling (A) and attach a hoist. Put the steering clutch and brake on the final drive.
9. Install bolts (2) that hold the steering clutch and brake to the final drive.
10. Put O-ring seal (1) in position on the steering clutch and brake.
End By:
a. install final drive, steering clutches and brake.
Disassemble Steering Clutches & Brakes
Start By:
a. separation of final drive and steering clutches and brakes
1. Remove bolts (1) and plate (2).
6/15
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2. Remove sleeve bearings (3) from plate (2).
3. Remove input hub (4).
4. Remove clutch plates (5) and friction discs (6) from hub assembly (7).
5. Remove piston (8) from hub assembly (7).
6. Remove sleeve bearing (9).
7/15
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7. Remove seals (10) and (11) from piston (8).
8. Turn brake assembly over.
9. Remove ring (12) from hub assembly (7).
10. Fasten a hoist and Tool (A) to housing (13), and remove the brake assembly from hub
assembly (7). The weight of the brake assembly is 86 kg (190 lb).
11. Remove bearing (14) from housing (13).
12. Remove three rings (15) from hub assembly (7).
13. Remove bearings (16) from hub assembly.
8/15
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Bolts (19) hold a spring under compression behind the piston. To
prevent possible personal injury, bolts (17) must be removed before
bolts (19).
14. Remove bolts (17) and plate (18) from housing (13).
15. Remove brake plates (20) and friction discs (21) from the housing.
Bolts (19) hold a spring under compression. To prevent possible
personal injury, loosen bolts (19) slowly and evenly.
16. Remove bolts (19) and manifold assembly (22) from housing (13).
9/15
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17. Remove seals (23) and (24) from manifold assembly (22).
18. Remove piston (25) from housing (13).
19. Remove springs (26) from housing (13).
NOTE: Note the direction of spring (26) before removing.
20. Remove O-ring seal (27) and (28).
Assemble Steering Clutches & Brakes
1. Clean and inspect all parts for wear or damage. Replace all parts that are damaged or worn.
10/15
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2. Install springs (26) in housing (13).
3. Install O-ring seals (27) and (28).
4. Put piston (25) in position in housing (13).
5. Install seals (23) and (24) on manifold assembly (22). Install the seals on the manifold assembly
with the lip of the seals as shown. Put clean oil on the lip of the seal.
6. Align the hole in manifold assembly (22) with the holes in housing (13), and install the
manifold assembly and bolts (19).
11/15
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Figure 1. Correct Method To Make (Non-Metal) New Seal Rings Ready For Installation.
Figure 2. Wrong Method To Make (Non-Metal) New Seal Rings Ready For Installation.
NOTICE
New seal rings must be preloaded before they are installed to prevent
them from being damaged or broken. There is a correct method to
preload new seal rings prior to installation. Place your hands on each
end of the seal ring, and pull (wind) the ends several inches past each
other or until they almost make contact. See Figure 1. Use care to keep
the ring shaped like a circle. This will make an even bend (or ring
"set") all around the ring. When the seal ring is in the groove of the
hub assembly the ends must butt together lightly. Do not bend the seal
ring as shown in Figure 2. This does not make an even bend all the way
around the ring. Do not attempt to use this method to preload a used
seal ring. Also, do not use this procedure for cast iron seal rings. This
will cause used or cast iron seal rings to break.
7 Heat the bearing (12) to a maximum temperature of 120° C (248° F) and install the bearing on
hub assembly (17). Make sure the bearing is seated squarely on the hub assembly after it has
cooled.
12/15
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8. Install three rings (15) on hub assembly (17).
9. Install bearing (14) in housing (13).
10. Fasten a hoist and Tool (A) to housing (13), and lower the housing in position on hub
assembly (7).
11. Install ring (12) on hub assembly (7).
12. Start with a plate, and install plates (20) and discs (1). Alternate the plates and discs.
13/15
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13. Install plate (18) and bolts (17) on housing (13).
14. Install sleeve bearing (9) in hub assembly (7).
15. Install seals (10) and (11) in piston (8).
16. Put clean oil on the seals, and install piston (8) in hub assembly (7).
17. Install input hub (4).
14/15
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18. Start with a plate, and install clutch plates (5) and friction discs (6).
19. Install sleeve bearing (3) in plate (2).
20. Put plate (2) in position on the housing, and install bolts (1).
End By:
a. connection of final drive and steering clutches and brakes.
Thu Dec 17 12:42:29 UTC+0800 2020
15/15
2020/12/17

Shutdown SIS
Previous Screen
SENR83570017
Power Train Oil Filter
SMCS - 3004-017; 3004-010
Remove & Install Power Train Oil Filter
1. Remove the plug (1) under the right platform and drain the oil from the filter.
2. Remove the seat, armrest and the right side console cover.
3. Disconnect two wires (2) at the sender, disconnect two tube assemblies (3). Remove four bolts
and washers (5) and panel (4).
1/3
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4. Remove two bolts and washers (7) and loosen clamp (6).
5. Install Tooling (A) and a hoist to oil filter (8) and remove the filter from the machine.
NOTE: Install the power train oil filter in the reverse order.
Disassemble & Assemble Power Train Oil Filter
Start By:
a. remove power train oil filter
1. Remove switch (1), O-ring seal (2), plunger (3), and spring (5) from housing assembly (7).
2. Remove plug (6) from the cover assembly.
3. Remove five bolts (8) that hold cover assembly (4) to the filter housing assembly.
4. Remove plug (9) from the housing assembly.
2/3
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5. Remove locknut (13), retainer and O-ring seal (10), element (11), stud (14) and two O-ring
seals (12) from cover assembly (4).
6. Inspect O-ring seal and replace if necessary. Thoroughly clean all of the parts.
NOTE: The following Steps are for assembly of the power train oil filter.
7. Install stud (14) into cover assembly (4). Put element (11), retainer and O-ring seal (10), and
locknut (13) in position on the stud. Tighten locknut (13) to a torque of 13.6 ± 2.7 N·m (122 ± 24
lb in).
8. Install two O-ring seals (12) onto cover assembly (4).
9. Put cover assembly (4) into position in housing assembly (7) and install five bolts (8).
10. Install plug (6) into the cover assembly.
11. Install plug (9) into the housing assembly.
12. Install spring (5), plunger (3), O-ring seal (2) and switch (1) into housing assembly (7).
End By:
a. install power train oil filter
Thu Dec 17 12:43:19 UTC+0800 2020
3/3
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Shutdown SIS
Previous Screen
SENR83570018
Power Train Oil Pump
SMCS - 3066-016; 3066-010
Remove & Install Power Train Oil Pump
Start By:
a. remove seat
1. Disconnect four hose assemblies (1) from the implement control valve and position out of the
way.
1/11
2020/12/17

Caterpillar Cat D6R TRACK-TYPE TRACTOR (Prefix 6MR) Service Repair Manual (6MR00001 and up).pdf

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Caterpillar Cat D6R TRACK-TYPE TRACTOR (Prefix 6MR) Service Repair Manual (6MR00001 and up).pdf